Converted a 6' Western for my 743 Bobcat back in the 90's......wasn't happy with the results. Didn't stiff arm it, used a chain so it would float on rough surfaces, that worked ok. Had to remove the springs and weld solid, the Bobcat would trip the plow constantly. Didn't need flow restrictors as I had a pressure relief on the aux circuit for my 4in1 bucket.
Biggest problem was not being able to "cast" the snow with a top speed of 5 mph. 1 or 2 passes in an area was fine, try to clear a larger area and you were there forever.
Sold it to friend, he used it to push feed back to the cows in the dairy barn.
Besides, the plow truck was much warmer.
Ed